1. "Dunde": Attach importance to moral cultivation, emphasize the importance of personal morality, and pursue a noble moral realm.
2. "Work hard": pay attention to practice, emphasize the importance of action, and advocate training yourself and improving your ability through practice.
3. "Accumulate wisdom": accumulate wisdom, emphasize the importance of knowledge and wisdom, and advocate enriching your wisdom through continuous learning and thinking.
4. "Deep learning": pursuing profound knowledge, emphasizing the importance of academic research, and advocating expanding one's academic horizons and knowledge reserves through in-depth study and research.
Generally speaking, this sentence emphasizes the importance of personal cultivation, practical action, knowledge and wisdom and academic research, and can be used as a guide for personal learning and cultivation.